Table 4

Cox proportional hazards model investigating time to multiple weight management interventions after a record of overweight or obesity

Patients receiving weight management intervention (n)Total patients (N)HR95% CIp Value
Age (decades)1.421.27 to 1.58<0.001
Age squared0.970.96 to 0.98<0.001
Gender
 Male610448 4131.00
 Female705443 0001.141.10 to 1.19<0.001
BMI category*
 Overweight (BMI 25–29.9)501950 0751.00
 Obese (BMI 30–34.9)426319 8121.681.60 to 1.76<0.001
 Severe obesity (BMI 35–39.9)218659592.362.23 to 2.50<0.001
 Morbid obesity (BMI ≥40)169024093.673.45 to 3.91<0.001
Smoking status
 Non-smoker544132 5761.00
 Former smoker396224 1421.111.06 to 1.16<0.001
 Current smoker253014 2770.990.94 to 1.050.823
 Missing smoking status122510 2600.820.77 to 0.88<0.001
IMD quintile
 1—least deprived256418 1551.00
 2249017 6350.940.88 to 1.000.054
 3251114 2431.201.12 to 1.29<0.001
 4241312 8591.131.06 to 1.21<0.001
 5—most deprived227710 3371.241.15 to 1.32<0.001
 Missing IMD90350261.040.95 to 1.130.395
CHD199396691.241.16 to 1.31<0.001
Stroke53526031.090.98 to 1.210.116
Type 2 diabetes440112 8841.831.75 to 1.92<0.001
Depression638531 5731.331.28 to 1.39<0.001
  • *BMI group at baseline. Patients could change BMI category in the analysis so intervention may have been delivered when patients had changed BMI category.

  • BMI, body mass index; CHD, coronary heart disease; IMD, Index of Multiple Deprivation.